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8700k overheating at stock speeds

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post #1 of 20 (permalink) Old 02-10-2019, 04:07 PM - Thread Starter
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8700k overheating at stock speeds

I recently updated the bios on mobo the latest version, and ever since then my 8700K can't overclock at all without getting way above safe temp during stress testing. Even at STOCK running IBT on "very high", it pushes over 90C. MY chip is delidded with grizzly, and I've re-applied the thermal paste to see if that would have any impact on it...but didn't do anything. I've also tried checking my H00i V2 cooler, and I can feel vibration on the coolant lines, So I'm assuming the pump it working (currently running at full speed 3K RPM). The fans on it are also running at the same percentage that they were prior to the bios update (50%). Prior to the update, I was running the cpu at 4.7ghz, @ 1.3v.

Any ideas as to what's causing this? I can't see a bios update screwing things up this bad.

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Last edited by TheLastHero; 02-10-2019 at 10:48 PM.
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post #2 of 20 (permalink) Old 02-11-2019, 12:31 AM - Thread Starter
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Update:

I reverted back to the old bios version that I was using before (v616), and the issue still remains. Do all roads lead to failure in the cooling department? It's weird because I never noticed any issues with this after setting the overclock late last year. Idle temp and gaming temps were well within acceptable range, around 70C max gaming and 40ish idle or while doing basic stuff.

Doesn't matter if it's IBT or realbench, the high CPU temp happens on both during testing. Overclocked or not

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post #3 of 20 (permalink) Old 02-11-2019, 01:18 AM
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Can't be 100% sure but the CLC is likely dying. Do you feel much heat on the lines? Is the rad pumping out warm air? What are the coolant temps?

Quote: Originally Posted by SpeedyVT
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post #4 of 20 (permalink) Old 02-11-2019, 02:51 AM - Thread Starter
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Quote: Originally Posted by white owl View Post
Can't be 100% sure but the CLC is likely dying. Do you feel much heat on the lines? Is the rad pumping out warm air? What are the coolant temps?
Don't feel any heat in the lines, vibration is there which should mean that the pump is working. I have the fans on the H100i configured in a "pull" configuration, no heat coming off that thing either. I went ahead and tried re-applying the thermal paste a second time, and really making sure that the block is making proper contact with the cpu.....and I'm 100% positive it's sitting right.

Note: The cpu is clocked at 4.7 in the screenshot 1.25v
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post #5 of 20 (permalink) Old 02-11-2019, 02:55 AM
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Quote: Originally Posted by TheLastHero View Post
Don't feel any heat in the lines, vibration is there which should mean that the pump is working. I have the fans on the H100i configured in a "pull" configuration, no heat coming off that thing either.
If there's no heat in the lines I'm 99% sure it's broken. Vibration doesn't mean it's not broken, it just means the pump is doing something (not 100% dead). Could be a clog inside the cooler but that isn't likely.
For heat to leave the CPU in must go through the lines and be expelled by the rad. If that isn't happening the cooler isn't working.


Rule of thumb:
If you have a CLC and your temps were once fine and now they aren't, there's a really good chance it's dying. The pumps on CLCs are already very weak so it doesn't take much to render them ineffective.
This is probably the 10th thread I've posted in since being back on OCN where the exact same thing happened to someone else, pump still running, temps keep climbing. Broken CLC every time. Maybe I'm wrong this time but it would be the first.

Quote: Originally Posted by SpeedyVT
If you're not doing extreme things to parts for the sake of extreme things regardless of the part you're not a real overclocker.
Quote: Originally Posted by doyll View Post
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Last edited by white owl; 02-11-2019 at 03:03 AM.
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post #6 of 20 (permalink) Old 02-11-2019, 03:03 AM - Thread Starter
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Quote: Originally Posted by white owl View Post
If there's no heat in the lines I'm 99% sure it's broken. Vibration doesn't mean it's not broken, it just means the pump is doing something (not 100% dead). Could be a clog inside the cooler but that isn't likely.
For heat to leave the CPU in must go through the lines and be expelled by the rad. If that isn't happening the cooler isn't working.


Rule of thumb:
If you have a CLC and your temps were once fine and now they aren't, there's a really good chance it's dying. The pumps on CLCs are already very weak so it doesn't take much to render them ineffective.
If this is indeed the case, it's pretty sad because I don't think this cooler is even a year old. Will have to find the receipt for it. So is it eligible for an RMA? I might buy a H150i instead (or something better, not sure what's good), and try selling whatever the send me as a replacement.

To sum things up, a simple bios update would cause an issue like this? Doesn't make any sense to me why it would, but I've never run into this kind of issue before.

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post #7 of 20 (permalink) Old 02-11-2019, 03:11 AM
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I would hope they'd RMA it. They deal with this all the time, some have good luck with them but many do not.
Personally I wouldn't support the Asetek pump design with money but to each their own. Almost all CLCs share the same pumps so I doubt there would be much difference in reliability between them all. To be much cooler than a good air cooler most CLCs also need to be louder so that's something to consider. Requiring a 280mm/360mm radiator to pull past an air cooler seems a bit inefficient to me but that's just me.

I doubt the BIOS update broke the cooler, that's likely just when you noticed it.

Quote: Originally Posted by SpeedyVT
If you're not doing extreme things to parts for the sake of extreme things regardless of the part you're not a real overclocker.
Quote: Originally Posted by doyll View Post
The key is generally not which brands are good but which specific products are. Motherboards and GPUs are perfect examples of companies having everything from golden to garbage function/quality.
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Last edited by white owl; 02-11-2019 at 03:17 AM.
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post #8 of 20 (permalink) Old 02-11-2019, 03:20 AM - Thread Starter
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Quote: Originally Posted by white owl View Post
I would hope they'd RMA it. They deal with this all the time, some have good luck with them but many do not.
Personally I wouldn't support the Asetek pump design with money but to each their own.
After looking at the receipt, it's a lot older than I thought... Purchased 3/28/2017. Do all AIO liquid coolers use the "Asetek" pump design? What would you suggest as a good replacement for my H100i? When this thing was working properly, I couldn't even get 4.8ghz out of the 8700k.....which is delidded to boot.

i7 8700K De-lid | 2x8GB Corsair Vengeance RGB 2666 DDR4 @3200mhz/1.35V | EVGA GTX 1070 SC | Asus ROG Z370-F Gaming | Samsung 850 EVO 256GB x2 | Seagate 1TB HD | Corsair RM650x PSU | Corsair H115i PRO Liquid cooler |Corsair 400C case (White)
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post #9 of 20 (permalink) Old 02-11-2019, 03:57 AM
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What kind of Grizzly did you use for the delid? Conductonaut (liquid metal)?
If you seeing 90°C under stress testing, then 70°C under gaming sounds right.

I'm seeing 75°C on my under stressing and 50-55°C under gaming load on my [email protected] with a custom loop.

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post #10 of 20 (permalink) Old 02-11-2019, 04:06 AM - Thread Starter
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Quote: Originally Posted by broodro0ster View Post
What kind of Grizzly did you use for the delid? Conductonaut (liquid metal)?
If you seeing 90°C under stress testing, then 70°C under gaming sounds right.

I'm seeing 75°C on my under stressing and 50-55°C under gaming load on my [email protected] with a custom loop.
Liquid metal. The problem is that it's sitting in the high 90's to hitting 101C, and the thermal throttling kicks in. At that point I just stop the test, prior to this I'd be hitting around 83C max during stress testing...so somethings definitely up.

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